A: I'm not sure it does.

答：我不太确定。

youdao

So I turned something on, but I'm not sure it was a Texas accent.

我带上了点口音，但我不确定带的是德州的口音。

youdao

I want for this crisis to have changed things, but I'm not sure it has.

我想要这次危机改变些事情，但是我并不确认这种改变已经发生了。

youdao

What does it mean to him? "Nothing,and I'm not even sure when it is.

VOA: special.2010.02.08

I'm not sure it does compress the range.

但是我不太确定这是否压缩了范围

耶鲁公开课 - 博弈论课程节选

So my walk is, it's not confident and I'm not sure if I'm strong in my step yet.

所以我的走姿不是特别自信，担心步伐会不稳。

I wonder if 实战 - SpeakingMax英语口语达人

"On balance, I'm not sure it's the best way to do business, " said Ali Velshi, CNN's chief business correspondent.

CNN: Doug Gross,

And then, he tried to explain himself and I'm not sure it helped.

NPR: Prosecutors, Pelosi Stay in Political News

I'm not sure it's actually been discussed in the briefing room -- Libor.

WHITEHOUSE: Press Briefing